This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 1 | 66 |
| 2 | 5078 |
| 3 | 346028 |
| 4 | 22952323 |
| 5 | 1527488498 |
| 6 | 101276030555 |
| 7 | 6693244281896 |
| 8 | 442014330398515 |
| 9 | 29178369838713161 |
| 10 | 1925440562309496640 |
| 11 | 127035121924736497404 |
| 12 | 8380770923086769177166 |
| 13 | 552870412078787577689020 |